Floor construction.



T. KARAS.

FLOOR CONSTRUCTION.

APPLICATION FILED APR. 2, 1910.

Patented Mar. 11,1913.

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FLOOR OONSTRUOTION.

APPLICATION FILED APR. 2, 1910.

2 SHEETS-SHEET 2.

0272 62? fizz e22 757 THOMAS KARAS, OF ST. LOUIS, MISSOURI.

FLOOR CONSTRUCTION.

Specification of Letters Patent.

Patented Mar. 11, 1913.

Application filed April 2, 1910. Serial No. 553,018.

To all whom it may concern:

Be it known that I, THOMAS KAnas, a subject of the Emperor ofAustria-Hungary, residing at 2106 Sidney street, in the city of St.Louis, State of Missouri, have invented a new and useful Improvement inFloor Construction, of which the following is a specification.

This invent-ion relates to floor construction, and more particularly tothe construction of floors of concrete and other materials which arepositioned while in a plastic state, and then permitted to harden orsolidify, and in which are embedded sleepers or sills to which the woodsuperstructure portion of the floor may be secured. The strips whichhave been so used are usually of thin wood. It is difficult to adjuststrips of any size or dimensions in the same level or horizontal planesince no adjusting or leveling frame or device for that purpose has beendevised. When the strips are uneven the sleepers will also be held inuneven adjustment with the result that the flooring will conform to thesleepers and be uneven and imperfect and unsightly.

The object of the present invention is to provide an apparatus for usein floor construction of the character referred to, comprising a framewith means in connection therewith for supporting the sleepers in exactancl positive adjustment with respect to each other, and to said frame,so that the plastic floor material may be located without dislocatingany of the sleepers from their proper adjustment. After the plasticmaterial has become hardened the sleepers will be firmly and rigidlyheldtherein and the flooring laid on the sleepers thus arranged will besmooth, even and level throughout.

Other objects will appear from the following description, referencebeing made to the accompanying drawings, in which I have illustrated oneembodiment of my invention, and in which Figure 1 is a plan View of aframe of the character containing my invent-ion showing a number of thefloor sleepers held in position by said frame. Fig. 2 is a sideelevation of one of the main supporting members of the frame. Fig. 3 isan enlarged view showing one of the main supporting members in sectionand the devices for supporting the floor sleepers. Fig. 4 is a sectionalview of the parts supporting the floor sleepers.

A preferred construction of the frame includes side supporting members1, and one or more intermediate supporting members 2. The members 1 and2 are strong and inflexible and may be supported by adjustable screws 3.These adjustable screws operate through the metallic plates 1 fastenedto the lower edges of the members 1 and 2 and ex- ;tcnd into holes 5 insaid members. The lower ends of the screws 3 have heads 6, rigid orintegral therewith, and constitute means for engagement for purposes ofturning the screws to adjust the members 1 and 2 in proper position. Theheads 6 may be polygonal to be engaged by a wrench or similar device ormay contain holes 7 for the reception of any implement in rotating thescrews. Suitable supports 8 constitute bearings for the ends of thescrews 3 as may be seen in Fig. 3. The side members 1, at suitableintervals on their inner sides, have stirrups or brackets 9 screwedthereto. The members 2 on each side thereof have similar brackets 10matching the brackets 9 on the side members. These brackets constitutesupports for the members 11 whose ends rest in said stirrups. Atintervals corresponding to the space separating the sleepers, rods orbolts 12 extend through the members 11, having their upper ends threadedand provided with manually operable nuts 13 where by said rods may bemoved. Upon the lower end of each of the rods 12 a metallic member 14 issupported. Abutment posts 15 are attached to the sides of the members 11opposite the bolts 12.

In using my invention the frame is assem bled substantially as shown inFig. 1 in which the frame is constructed in dimensions corresponding tothe number of sleepers to be supported or adjusted. When the frame hasbeen assembled and adjusted in this way the sleepers A are connectedwith the frame by use of wire loops 16 passing under the sleepers andover the ends of the parts 14. as shown in Fig. 3. Nuts 13 are thenoperated to draw upwardly the rods or bolts 12 until the sleepers A arein rigid cont-act with the lower ends of the abutment posts 15.Preferably each sleeper is connected with all of the members 11 by useof the rods 16 though in some instances it may be found unnecessary tomake the connection between the sleepers and all of the said members 11.Having been adjusted in this manner, the floor material may then beplaced so as to embed as much of the sleepers as desired,

and this may be done without danger of displacing any of the sleeperswhich will be firmly and securely held. After the floor material hasbecome hardened or solidified the loops 16 may be out even with theupper surface of the floor material and the frame may then be moved foruse in constructing additional flooring. It will be observed that by useof this device it is unnecessary to remove the supporting loops afterthe floor material hardens, said loops remaining embedded therein.

I am aware that there may be various modifications of my invention, andthat it may be used for other purposes without departing from theprinciples thereof. I do not restrict myself to identical features ofconstruction or specific uses, but

What I claim and desire to secure by Let ters Patent is- 1. An apparatusfor leveling and holding sleepers designed to be embedded in plastic ormolded floor construction, comprising side members, screws for adjustingsaid side members in level adjustment, stirrups attached to said sidemembers, cross members having their ends removably located in saidstirrups, a series of bolts adjustably carried by each cross member,arms extending from the lower end of each bolt, means adapted fordetachably connecting the sleepers to said arms, and abutments for thesleepers on said cross members.

2. A frame for adjusting floor-sleepers which are designed to beembedded in plastic or molded floors comprising side members, levelingscrews supporting said side members, brackets attached to the innersides of said side members, cross members having their ends resting insaid brackets, bolts loosely mounted in holes in said cross members,arms carried on the lower ends of said bolts, loops engaged over saidarms and arranged to detachably support the floor sleepers, abutments onsaid cross members close to said bolts whereby said bolts may be drawnupwardly eifectively to draw the floor sleepers against said abutmentsprior to said sleepers being molded into the floor, substantially asspecified.

3. A device for holding sleepers which are to be embedded in plastic ormolded floors, comprising a separable frame, abutments in the samehorizontal plane at the lower side of said frame, supports fordetachably holding the floor sleepers, and means for operating saidsupports eifectively to draw said sleepers against said abutments priorto said sleepers being molded into the floor, substantially asdescribed.

4. A device for use in floor construction and the like adapted forholding sleepers which are to be embedded in a plastic or molded floor,comprising a frame comprising horizontal side members, brackets attachedto said side members, transverse members removably supported by saidbrackets, adjustable devices carried by said transverse members, anddetachable supports for the floor sleepers carried by said adjustabledevices, substantially as specified.

5. A device for use in fioor construction and the like adapted forholding sleepers which are to be embedded in a plastic or molded floor,comprising a frame comprising horizontal side members, brackets attachedto said side members, transverse members removably supported by saidbracket-s, adjustable devices carried by said transverse members,detachable supports for the floor sleepers carried by said adjustabledevices, and abutments for the sleepers on said transverse members,substantially as specified.

6. A device for use in floor construction and the like adapted forholding sleepers which are to be embedded in a plastic or molded floor,comprising a frame comprising horizontal side members, transversemembers removably supported by said side members, and devices supportedby said transverse members for upholding and adjusting the floorsleepers prior to their being embedded in the floor, substantially asdescribed.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

THOMAS KARAS. Witnesses:

FRANKLIN MILLER, B. F. OREAR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

